Precision-engineered Drainage

To deliver precision-engineered drainage and stormwater management solutions that protect property, support infrastructure, and meet the demanding needs of modern construction. Our work reflects craftsmanship, innovation, and the values of our founder.

Company History

Carl M. Henshaw Drainage Products Inc. began in 1958 as a small supplier catering to farmers in the Richmond, VA area. Over time, our capabilities expanded to include full-service drainage system design, installation, and custom metal fabrication.

Today, we support commercial, industrial, aviation, transportation, and municipal projects across Virginia, Maryland, DC, and North Carolina. Although we’ve grown, our foundation remains craftsmanship, reliability, and service.

What Sets us apart

  • In-house metal fabrication for precision and fast turnaround
  • Deep experience with industrial and transportation infrastructure
  • Strong relationships with top national brands
  • Comprehensive takeoffs, site surveys, and installation services
  • A trusted, long-established company with consistent results
  • Master Distributor for DuraTrench
  • Certified supplier for ADS, Nyloplast, StormTech, Contech, NDS, and Others
  • Recognized vendor for DOT and municipal projects
  • Featured in local infrastructure publications
  • Completed major projects for Phillip Morris, AdvanSix, Sanja Foods, and multiple rail/port authorities

Achievements & Recognition

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